Cold Pools Observed by Uncrewed Surface Vehicles in the Central and Eastern Tropical Pacific Geophysical Research Letters
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New in situ observations collected by Saildrones, a novel uncrewed surface vehicle (USV), are used to investigate atmospheric cold pools during three 6-month missions to the central and eastern (∼140°W–125°W) tropical Pacific. Cold pool fronts in the atmospheric boundary layer are identified by a −1.5°C air temperature drop occurring in 10 min or less. While cold pool events were observed in the central Pacific as far north as 30°N and within the equatorial band, the majority of observed cold pools occurred within the convective, low-wind shear environment of the Intertropical Convergence Zone. Composite time series analysis of measurements during the 382 cold pool events reveals new insights on
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2023-09-13
